CN106450539B - A kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic - Google Patents
A kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic Download PDFInfo
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- CN106450539B CN106450539B CN201611145286.8A CN201611145286A CN106450539B CN 106450539 B CN106450539 B CN 106450539B CN 201611145286 A CN201611145286 A CN 201611145286A CN 106450539 B CN106450539 B CN 106450539B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 113
- 230000004044 response Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005562 fading Methods 0.000 claims abstract description 30
- 230000001939 inductive effect Effects 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic.This method comprises: reading energy storage charge and discharge instruction and each energy-storage units status information in real time；When t moment meets p (t) × p (t-1) < 0, each energy-storage units inducing capacity fading state is adjusted；Arrange the response sequence of each energy-storage units；Calculate the power response value of each energy-storage units；It will be exported after each energy-storage units power instruction, the storage of inducing capacity fading state.Compared with prior art, the invention has the following advantages: the present invention is according to energy-storage units power and capacity-constrained, state-of-charge, charging and discharging state, inducing capacity fading state and battery capacity attenuation characteristic, take into account long-life and economy, it realizes the decomposition and coordinate responses to battery energy storage power station power instruction signal, improves energy-accumulating power station service life.
Description
Technical field:
The present invention relates to the control of electric energy storage system, in particular to a kind of energy storage based on battery capacity attenuation characteristic
Charge and discharge instructions coordinate response method.
Background technique:
Energy-saving and emission-reduction, environmental improvement background under, randomness, the large-scale grid connection of fluctuation renewable energy are to power grid
Safe and stable operation brings hidden danger, and energy storage technology is to solve renewable energy due to having quick active and reactive responding ability
One of stochastic volatility, effective means of non-scheduling.It is shown according to recent statistics data, lithium ion battery, sodium-sulphur battery, lead
The installed capacity of the battery energy storages technology such as sour battery, flow battery is accounted for fortune energy storage project (without pumped storage, compressed air, heat accumulation)
91% or more of installed capacity.However battery energy storage technical costs is higher, cycle-index is limited, it is extensive to improve battery energy storage
The economy of application is needed in application process in addition to improving its performance from technology itself using effective long-life power instruction
Decomposition strategy.Residual capacity is as the important indicator for measuring battery life, with the Multiple factors such as depth of discharge, charge and discharge number
It is related, how it to be based on battery capacity attenuation characteristic, explores long-life energy storage charge and discharge instructions coordinate response method, be this field skill
Art personnel problem in the urgent need to address.
Current patent, document etc. in relation to the energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic
It studies less, needs to further investigate.
Summary of the invention:
In order to solve the above-mentioned deficiency in the presence of the prior art, the present invention provides a kind of based on battery capacity attenuation characteristic
Energy storage charge and discharge instructions coordinate response method.Present invention provide the technical scheme that
A kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic, comprising:
Step 1: reading energy storage charge and discharge instruction and each energy-storage units status information in real time；Each energy-storage units state letter
Breath includes: each energy-storage units charge-discharge electric power upper limit, each energy-storage units maximum size, each energy-storage units state-of-charge, each energy storage
Unit charging and discharging state, each energy-storage units inducing capacity fading state；
Step 2: as t moment battery energy storage charge-discharge electric power p (t) and t-1 moment battery energy storage charge-discharge electric power p (t-1),
When meeting p (t) × p (t-1) < 0, i.e., when charging and discharging state changes, adjust each energy-storage units inducing capacity fading state；
Step 3: arranging the response sequence of each energy-storage units；
Step 4: calculating the power response value of each energy-storage units；
Step 5: will be exported after each energy-storage units power instruction, the storage of inducing capacity fading state.
Preferably, the detailed process of the step 2 are as follows:
Step 2.1: judging p (t) × pi(t-1) symbol；
Wherein, piIt (t-1) is power of the energy-storage units i at the t-1 moment, i=1,2 ..., N, N is energy-storage units quantity；
Step 2.2: as p (t) × pi(t-1) < 0 when, searching meets p (t) × piAnd p (t) × p (t-k-1) >=0i(t-
K) timing node k < 0；
Step 2.3: calculating the charge/discharge depth of energy-storage units i
Step 2.4: inducing capacity fading state when DOD=1 that energy-storage units i is corresponding, according to equivalent residual capacity, conversion
To DODiBattery capacity decline curve on, on the curve increase charge/discharge number, obtain increase charge/discharge number
Inducing capacity fading state when being 1, and then according to equivalent residual capacity, it converts to the inducing capacity fading curve of DOD=1；
Step 2.5: the battery energy storage capacity fade characteristics δ according to DOD=1DOD=fDOD(n), calculate energy-storage units i's
Capacity fading rate
As further preferred scheme, the detailed process of the step 3 are as follows:
Step 3.1: according to pi(t-1) energy-storage units are divided into piAnd p (t-1)=0i(t-1) ≠ 0 two it group, is denoted as storage respectively
It can unit group a, unit group b.
Step 3.2: as p (t) × p (t-1) < 0, the power output of arranging unit group a first, secondly arranging unit group b contributes, group
Interior power output sequence is sorted from large to small according to capacity fading rate, the energy-storage units m=1,2 ..., N after generating sequence；
Step 3.2: as p (t) × pi(t-k-1) >=0 when, secondly the power output of arrangement group b first is organized a power output by row, is gone out in group
Mechanical compliance sequence is sorted from large to small according to capacity fading rate, the energy-storage units m=1,2 ..., N after generating sequence.
As still further preferably scheme, the detailed process of the step 4 are as follows:
Calculate the power response upper limit of each energy-storage units:
Wherein, PmIt (t) is the responding power upper limit of the energy-storage units m in t moment, PmFor the maximum work output of energy-storage units m
Rate, EmFor the maximum size of energy-storage units m, socm(t) state-of-charge for being t moment energy-storage units m, Δ t is between the sampling time
Every；
Each energy-storage units according to power output priority, the calculation method of respective power response value:
A. as p (t)≤P1(t) when,
p1(t)=p (t)
B. work as P1(t)<p(t)≤P1(t)+P2(t) when,
p2(t)=p (t)-p1(t)
C. whenWhen,
D. whenWhen,
Compared with prior art, the invention has the following advantages:
The present invention is according to energy-storage units power and capacity-constrained, state-of-charge, charging and discharging state, inducing capacity fading state and electricity
Tankage attenuation characteristic takes into account long-life and economy, realizes decomposition and coordination to battery energy storage power station power instruction signal
Response improves energy-accumulating power station service life.
Detailed description of the invention:
Fig. 1 is the flow chart of the method for the present invention；
Fig. 2 is energy-storage units capacity fading rate translation method figure.
Specific embodiment:
For a better understanding of the present invention, the contents of the present invention are done further with example with reference to the accompanying drawings of the specification
Explanation.
A kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic, comprising:
Step 1: reading energy storage charge and discharge instruction and each energy-storage units status information in real time；Each energy-storage units state letter
Breath includes: each energy-storage units charge-discharge electric power upper limit, each energy-storage units maximum size, each energy-storage units state-of-charge, each energy storage
Unit charging and discharging state, each energy-storage units capacity fading rate；
Step 2.1: judging p (t) × pi(t-1) symbol；
Wherein, piIt (t-1) is power of the energy-storage units i at the t-1 moment, i=1,2 ..., N, N is energy-storage units quantity；
Step 2.2: as p (t) × pi(t-1) < 0 when, searching meets p (t) × piAnd p (t) × p (t-k-1) >=0i(t-
K) timing node k < 0；
Step 2.3: calculating the charge/discharge depth of energy-storage units i
Step 2.4: inducing capacity fading state when DOD=1 that energy-storage units i is corresponding, according to equivalent residual capacity, conversion
To DODiBattery capacity decline curve on, on the curve increase charge/discharge number, obtain increase charge/discharge number
Inducing capacity fading state when being 1, and then according to equivalent residual capacity, it converts to the inducing capacity fading curve of DOD=1；
Step 2.5: the battery energy storage capacity fade characteristics δ according to DOD=1DOD=fDOD(n), calculate energy-storage units i's
Capacity fading rate
Step 3.1: according to pi(t-1) energy-storage units are divided into piAnd p (t-1)=0i(t-1) ≠ 0 two it group, is denoted as storage respectively
It can unit group a, unit group b；
Step 3.2: as p (t) × p (t-1) < 0, the power output of arranging unit group a first, secondly arranging unit group b contributes, group
Interior power output sequence is sorted from large to small according to capacity fading rate, the energy-storage units m=1,2 ..., N after generating sequence；
Step 3.2: as p (t) × pi(t-k-1) >=0 when, secondly the power output of arrangement group b first is organized a power output by row, is gone out in group
Mechanical compliance sequence is sorted from large to small according to capacity fading rate, the energy-storage units m=1,2 ..., N after generating sequence；
Step 4.1: the power response upper limit of each energy-storage units:
Wherein, PmFor the upper limit of the power of energy-storage units m, EmFor the maximum size of energy-storage units m, socm(t) it is stored up for t moment
The state-of-charge of energy unit m, Δ t are sampling time interval；
The calculation method of the power response value of each energy-storage units:
Step 4.2:. works as p (t)≤p1(t) when,
p1(t)=p (t)
Step 4.3:. works as p1(t)<p(t)≤p1(t)+p2(t) when,
p2(t)=p (t)-p1(t)
Step 4.3: whenWhen,
Step 4.4: whenWhen,
Step 5: will be exported after each energy-storage units power instruction, the storage of inducing capacity fading state.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (3)
1. a kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic, which is characterized in that the side
Method includes:
Step 1: reading energy storage charge and discharge instruction and each energy-storage units status information in real time；Each energy-storage units status information packet
It includes: each energy-storage units charge-discharge electric power upper limit, each energy-storage units maximum size, each energy-storage units state-of-charge, each energy-storage units
Charging and discharging state, each energy-storage units inducing capacity fading state；
Step 2: as t moment battery energy storage charge-discharge electric power p (t) and t-1 moment battery energy storage charge-discharge electric power p (t-1), meeting
When p (t) × p (t-1) < 0, i.e., when charging and discharging state changes, adjust each energy-storage units inducing capacity fading state；Detailed process
Are as follows:
Step 2.1: judging p (t) × pi(t-1) symbol；
Wherein, piIt (t-1) is power of the energy-storage units i at the t-1 moment, i=1,2, L, N, N is energy-storage units quantity；
Step 2.2: as p (t) × pi(t-1) when < 0, searching meets p (t) × piAnd p (t) × p (t-k-1) >=0i(t-k) <
0 timing node k；
Step 2.3: calculating the charge/discharge depth of energy-storage units i
Step 2.4: inducing capacity fading state when DOD=1 that energy-storage units i is corresponding, according to equivalent residual capacity, conversion is arrived
DODiBattery capacity decline curve on, on the curve increase charge/discharge number, obtain increase charge/discharge number be 1
When inducing capacity fading state convert to the inducing capacity fading curve of DOD=1 and then according to equivalent residual capacity；
Step 2.5: the battery energy storage capacity fade characteristics δ according to DOD=1DOD=fDOD(n), the capacity for calculating energy-storage units i declines
Back speed rate
Step 3: arranging the response sequence of each energy-storage units；
Step 4: calculating the power response value of each energy-storage units；
Step 5: will be exported after each energy-storage units power instruction, the storage of inducing capacity fading state.
2. a kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic according to claim 1,
It is characterized in that, the detailed process of the step 3 are as follows:
Step 3.1: according to pi(t-1) energy-storage units are divided into piAnd p (t-1)=0i(t-1) ≠ 0 two it group, is denoted as energy storage list respectively
Tuple a, energy-storage units group b；
Step 3.2: as p (t) × p (t-1) < 0, arrangement energy-storage units group a power output, next arrangement energy-storage units group b go out first
Power is organized interior power output sequence and is sorted from large to small according to capacity fading rate, the energy-storage units m=1,2, L, N after generating sequence；
Step 3.3: as p (t) × pi(t-k-1) >=0 when, the power output of arrangement group b first, next organizes a power output by row, and it is suitable to organize interior power output
Sequence is sorted from large to small according to capacity fading rate, the energy-storage units m=1,2, L, N after generating sequence.
3. a kind of energy storage charge and discharge instructions coordinate response method based on battery capacity attenuation characteristic according to claim 2,
It is characterized in that, the detailed process of the step 4 are as follows:
Calculate the power response upper limit of each energy-storage units:
Wherein, PmIt (t) is the responding power upper limit of the energy-storage units m in t moment, PmFor the peak power output of energy-storage units m, Em
For the maximum size of energy-storage units m, socm(t) state-of-charge for being t moment energy-storage units m, Δ t are sampling time interval；
Each energy-storage units according to power output priority, the calculation method of respective power response value:
A. as p (t)≤P1(t) when,
p1(t)=p (t)；
B. work as P1(t) < p (t)≤P1(t)+P2(t) when,
p2(t)=p (t)-p1(t)；
C. whenWhen,
D. whenWhen,
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326428A (en) * | 2013-06-08 | 2013-09-25 | 东北电力大学 | Energy storage system operation optimization control method for prolonging service life of lithium battery |
| CN103997052A (en) * | 2014-04-23 | 2014-08-20 | 国家电网公司 | A method for controlling the active power of multiple energy-storage power stations |
| CN104348256A (en) * | 2013-07-30 | 2015-02-11 | 国家电网公司 | Multi-type battery energy storage power station energy management method taking charge-discharge rate into account |
| EP3010107A1 (en) * | 2014-10-13 | 2016-04-20 | ABB Technology AG | State of charge management in battery systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326428A (en) * | 2013-06-08 | 2013-09-25 | 东北电力大学 | Energy storage system operation optimization control method for prolonging service life of lithium battery |
| CN104348256A (en) * | 2013-07-30 | 2015-02-11 | 国家电网公司 | Multi-type battery energy storage power station energy management method taking charge-discharge rate into account |
| CN103997052A (en) * | 2014-04-23 | 2014-08-20 | 国家电网公司 | A method for controlling the active power of multiple energy-storage power stations |
| EP3010107A1 (en) * | 2014-10-13 | 2016-04-20 | ABB Technology AG | State of charge management in battery systems |
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Denomination of invention: A Coordinated Response Method for Energy Storage Charge and Discharge Instructions Based on Battery Capacity Decay Characteristics Effective date of registration: 20231122 Granted publication date: 20181225 Pledgee: China Construction Bank Corporation Shaodong sub branch Pledgor: HUNAN DEWOPU ELECTRIC CO.,LTD. Registration number: Y2023980067212 |